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61 Cygni

A double star containing two red-orange stars, both smaller than our Sun.
Possibly there is another small star or big Planet around 61 Cygni A.

Constellation: Cygnus
Distance: 11.43 light-years
Radial velocity: -64.8 km/sec
Orbit period of 61 Cygni A and B: 722 years

61 Cygni A

Spectral class: K5
Visual magnitude: 5.20
Luminosity: 0.0889 * Sun
Mass: 0.6 * Sun
Diameter: 1.051 * Sun
 

61 Cygni B

Spectral class: K7
Visual magnitude: 6,05
Luminosity: 0.0405 * Sun
Mass: 0.5 * Sun
Diameter: 0.753 * Sun

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    61 Cygni
Photo: ESO Online Digitized Sky Survey

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